This wand is fantastic. It’s ideal for taking on a trip to sanitize items in hotel/motel rooms; for the office; cellphones, packages, and anything else. It is not difficult to use. This is a very effective and useful UVC wand, in my opinion. I don’t think the 4 AA batteries are a big deal. The lack of protective eyewear, in my opinion, is a ‘glaring’ error. In fact, I didn’t even put the device through its paces until I put on the protective sunglasses that I use with the 2W UVC mini wands.